<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            class="input-with-select"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addUserVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表 -->
      <el-table :data="userlist" style="width: 100%" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStatesChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="150px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              circle
              @click="editUserInfo(scope.row.id)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              circle
              @click="delUser(scope.row.id)"
            ></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                circle
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addUserVisible" width="35%" @close="addUserClosed">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="账号" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email" type="email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addUserVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="40%"
      @close="setRoleDialogClosed"
    >
      <div class="setRoleDialog">
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>
          分配的角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRole">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 5,
      },
      userlist: [],
      total: 0,
      //添加用户对话框是否显示
      addUserVisible: false,
      //添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      //添加用户表单验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入账号', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '账号长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 18,
            message: '密码长度在 6 到 18 个字符',
            trigger: 'blur',
          },
        ],
        email: [{ required: true, message: '请输入邮箱', trigger: 'blur' }],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          {
            min: 11,
            max: 11,
            message: '手机长度为11个字符',
            trigger: 'blur',
          },
        ],
      },
      //控制分配角色对话款的显示与隐藏
      setRoleDialogVisible: false,
      userInfo: {},
      rolesList: [],
      selectRoleId: ' ',
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message.error('用户列表获取失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    //监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //监听 页码值 改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听用户状态改变
    async userStatesChange(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    //监听添加用户对话框关闭 清空表单
    addUserClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //添加用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        this.addUserVisible = false
        this.getUserList()
      })
    },
    //修改用户信息并提交
    async editUserInfo(id) {
      this.addUserVisible = true
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status != 200) {
        return this.$message.error('用户信息获取失败')
      }
      this.addForm = res.data
    },
    //删除用户信息
    delUser(id) {
      //删除确认 弹框
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      })
        .then(() => {
          this.$message({
            type: 'success',
            message: '删除成功!',
          })
          this.$http.delete('users/' + id)
          this.getUserList()
        })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除',
          })
        })
    },

    async setRole(userInfo) {
      this.userInfo = userInfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('角色列表获取失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },

    async saveRole() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectRoleId,
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    setRoleDialogClosed() {
      this.selectRoleId = ''
      this.userInfo = ''
    },
  },
}
</script>

<style lang="less" scoped>
.setRoleDialog p {
  margin: 8px 0;
}
</style>